Kevin Haggerty graduated from high school in 1977 – among the foggiest, Cheech-and-Chongiest years ever in terms of U.S. teens smoking marijuana, government data says. For more than 25 years, he has...

A substantial fraction of the Neanderthal genome persists in modern human populations. A new approach applied to analyzing whole-genome sequences data from 665 people from Europe and East Asia shows...